IXTU5N50P N-Channel MOSFET 500V 4.8A Equivalent & Substitute Parts

Part Overview

The IXTU5N50P is an N-Channel MOSFET manufactured by IXYS, rated for 500V drain-to-source voltage with 4.8A continuous drain current at 25°C. The device is housed in a TO-252AA (DPAK) surface mount package and is rated for 89W maximum power dissipation. This part is classified as obsolete, making identification of equivalent and substitute components necessary for ongoing design support, production continuity, and system maintenance.

Substiute Parts

IXTU5N50P

IXYSIn Stock: 1213IXTU5N50P Datasheet

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IRFR320PBF

Vishay SiliconixIn Stock: 5344IRFR320PBF Datasheet

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IRFR320TRLPBF

Vishay SiliconixIn Stock: 1152IRFR320TRLPBF Datasheet

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IRFR430ATRPBF

Vishay SiliconixIn Stock: 1830IRFR430ATRPBF Datasheet

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IRFR825TRPBF

Infineon TechnologiesIn Stock: 3480IRFR825TRPBF Datasheet

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R5205CNDTL

Rohm SemiconductorIn Stock: 2493R5205CNDTL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the IXTU5N50P is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Drain-to-Source Voltage (Vdss): Must equal or exceed 500V
• Continuous Drain Current (Id): Must equal or exceed 4.8A at 25°C
• On-State Resistance (Rds On): Must be compatible with circuit requirements
• Gate Threshold Voltage (Vgs(th)): Must fall within acceptable operating range
• Package Type: Must be TO-252-3 (DPAK) surface mount configuration
• Operating Temperature Range: Must support -55°C to 150°C (TJ)
• Compliance: RoHS3 compliance required

Substitution Logic: Parts are grouped into two categories based on electrical performance alignment:

Category A - Direct Substitutes (Vdss ≥ 500V, Id ≥ 4.8A): These devices maintain or exceed the voltage and current ratings of the IXTU5N50P, ensuring full functional compatibility in applications requiring the original specifications.

Category B - Functional Alternatives (Vdss < 500V or Id < 4.8A): These devices operate at reduced voltage or current ratings and are suitable only for applications where the circuit design permits lower maximum ratings.

Parameter Comparison

Engineering Selection Recommendations

Category A - Direct Substitutes (Recommended for New Designs):

IRFR430ATRPBF (Vishay Siliconix) - Active Product Status

• Meets or exceeds all electrical specifications of the IXTU5N50P
• Vdss: 500V (equal), Id: 5A (exceeds 4.8A requirement)
• Rds On: 1.7 Ohm provides acceptable on-state performance
• Power dissipation: 110W (Tc) exceeds 89W requirement
• RoHS3 compliant, MSL 1, REACH unaffected
• Packaging: Cut Tape (CT) & Digi-Reel® available
• Recommended for applications requiring full voltage and current capability

R5205CNDTL (Rohm Semiconductor) - Active Product Status

• Exceeds voltage specification: Vdss 525V (vs. 500V)
• Meets current specification: Id 5A (vs. 4.8A)
• Rds On: 1.6 Ohm provides comparable on-state performance
• Gate charge: 10.8 nC (lower than IXTU5N50P, beneficial for switching speed)
• RoHS3 compliant, MSL 1, REACH unaffected
• Recommended for applications where lower gate charge is advantageous

IRFR825TRPBF (Infineon Technologies) - Not For New Designs

• Exceeds electrical specifications: Vdss 500V, Id 6A
• Rds On: 1.3 Ohm (superior on-state performance)
• Power dissipation: 119W (Tc) exceeds requirement
• RoHS3 compliant, MSL 1, REACH unaffected
• Product status restricts use to legacy system support and maintenance only

Category B - Functional Alternatives (Reduced Ratings):

IRFR320TRLPBF (Vishay Siliconix) - Active Product Status

• Reduced voltage rating: Vdss 400V (vs. 500V requirement)
• Reduced current rating: Id 3.1A (vs. 4.8A requirement)
• Suitable only for applications where circuit design permits 400V maximum and 3.1A maximum current
• RoHS3 compliant, MSL 1
• Packaging: Tape & Reel (TR) available

IRFR320PBF (Vishay Siliconix) - Active Product Status

• Reduced voltage rating: Vdss 400V (vs. 500V requirement)
• Reduced current rating: Id 3.1A (vs. 4.8A requirement)
• Suitable only for applications where circuit design permits 400V maximum and 3.1A maximum current
• RoHS3 compliant, MSL 1
• Packaging: Tube available
• REACH affected status noted

Frequently Asked Questions (FAQ)

Q: Can IRFR320TRLPBF or IRFR320PBF be used as direct replacements for IXTU5N50P?

A: No. Both IRFR320 variants operate at 400V maximum drain-to-source voltage and 3.1A maximum continuous drain current. The IXTU5N50P is rated for 500V and 4.8A. These parts are functional alternatives only for applications where the circuit design permits reduced voltage and current ratings. Direct substitution in circuits designed for 500V/4.8A operation will result in component overstress and failure.

Q: What is the difference between IRFR320TRLPBF and IRFR320PBF?

A: Both parts are electrically identical with the same electrical specifications (400V, 3.1A). The primary difference is packaging: IRFR320TRLPBF is supplied in Tape & Reel (TR) format for automated assembly, while IRFR320PBF is supplied in Tube format for manual handling. Selection depends on assembly process requirements.

Q: Why is IRFR825TRPBF marked "Not For New Designs"?

A: IRFR825TRPBF carries a "Not For New Designs" product status, indicating that Infineon has designated this part for legacy system support only. While electrically superior to the IXTU5N50P (6A vs. 4.8A, 1.3 Ohm vs. 1.4 Ohm Rds On), it should not be selected for new product development. Use IRFR430ATRPBF or R5205CNDTL for new designs.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (IRFR825TRPBF, IRFR430ATRPBF, IRFR320TRLPBF, IRFR320PBF, and R5205CNDTL) are RoHS3 compliant. The IXTU5N50P is also RoHS3 compliant.

Q: What is the significance of gate charge (Qg) differences between parts?

A: Gate charge affects switching speed and driver circuit requirements. The IXTU5N50P has Qg of 12.6 nC, while R5205CNDTL has 10.8 nC (lower, faster switching) and IRFR825TRPBF has 34 nC (higher, slower switching). Lower gate charge reduces switching losses but may require different gate driver characteristics. Circuit validation is necessary when switching between parts with significantly different gate charge values.

Q: Can I use R5205CNDTL in place of IXTU5N50P?

A: Yes, for applications where the circuit design permits. R5205CNDTL exceeds the IXTU5N50P specifications: Vdss 525V (vs. 500V), Id 5A (vs. 4.8A), and Rds On 1.6 Ohm (vs. 1.4 Ohm). The lower gate charge (10.8 nC vs. 12.6 nC) may improve switching performance. R5205CNDTL is active product status, making it suitable for new designs.

Q: What is the difference between power dissipation ratings (Ta) and (Tc)?

A: Power dissipation at Ta (ambient temperature) represents thermal performance under free-air conditions, while Tc (case temperature) represents performance with direct case temperature measurement. The IXTU5N50P specifies 89W (Tc). When comparing substitutes, use the Tc rating for direct comparison. IRFR320 parts specify 42W (Tc), indicating lower thermal capability than the original part.

Q: Are all substitute parts available in the same TO-252-3 (DPAK) package?

A: Yes. All substitute parts are housed in TO-252-3 (DPAK) surface mount packages, ensuring mechanical and thermal interface compatibility with the original IXTU5N50P. Pin configuration and footprint are identical across all listed parts.

Q: What inventory status should I consider when selecting a substitute?

A: Inventory availability varies by part. IRFR825TRPBF has 3400 pcs in stock, IRFR430ATRPBF has 1800 pcs, IRFR320TRLPBF has 1090 pcs, IRFR320PBF has 5317 pcs, and R5205CNDTL has 2460 pcs. Inventory levels may change; verify current availability with your supplier before finalizing design decisions.